@ARTICLE {YAMOAH:1986a,
title = {Nutrient contribution and maize performance in alley cropping system},
author = {Yamoah, C. F. and Agboola, A. A. and Wilson, G. F. },
journal = {Agroforestry Systems},
year = {1986},
volume = {4},
number = {3},
pages = {247--254},
issn = {0167-4366},
}